Union hose and pipe coupling.



-W. L. GANNIFP.

UNION HOSE AND PIPE COUPLING.

APPLIUATION FILED JAN. 2, 1908.

Patented Feb. 16, 1909.

TED STATES PATENT OFFICE.

WILLIAM L. 'CANNIFF, on NEW YORK, N. Y.

nmo'nnosn AND PIPE COUPLING,

nectar-30a.

Specification otLe'tters Patent.

Patented Feb. 16, 1909.

Application flied January 2', 190a. Serial No. 409,079.

To allwhom it may concern;

Be it" known that 1, WILLIAM 'L. CANNIFF,

a citizen of the United States, residing in the boron of Manhattamcity,county, and

'5 State of ew York,, have invented certain new 'and useful Improvements'in Union Hose and Pipe Couplings, of which the followmiais aspecification. v

. yinvention is designed to afford a simple L but effective couplingdevice by which "flexible hose may-be connected with rigid piping,

as where steam or com ressed'air is used fordrilling, mining, tunne 'ngand similar purposes, and it consists in the construction and arranement of parts hereinafter'described 28 an elevation of the inner endthereof; ig.

8, is a side elevation of thelocking section.

The ipesection P is. formed at its inner end .wit a female screw thread1 for engagement with the malethreaded end of a metal, pipe 2. The faceof the inner end of the pipe section P is formed with an annular convexcontact-surface 3, for engagement with an opposed annular packing ofalloy- 4 set in a groove 5 formed for its reception in the inner ace ofthe 'hose section H. It is obvious in this connection that thisarrangement of bearing surfaces may be transposed if desired, with likeresult,theconvex contact 3 beingqformed on theinner face of the hosesection H- and an annular groove 4, being formedin the opposedinner faceof the pipe section] Externally. the pipe section is formed with .aplurality-of transversely ar-' ranged tapering flanges 6, 6. Two ofthese are shown inthe-drawings which is the referable' number, althoughI do not imit myself in this respect. Between the adjacent ds of'thesetransversely inclined 'shoul ersB, 6, openings 7, 7, of suflicienp Widthare formed to admit of the assa e o the overlappin shoulders 8, 8, on te 100 ing section 'L. T e tapering flanges 6, 6, are preferably formedwith inwardly beveled contact faces 9, 9, for engagement with thecontact surfaces 10, of. the overlapping \shoulders 8, which lattercontact surfaces 10, 10, are also preferably beveled to correspond tothe opposed contact surfaces 9, 9, on the taperiilg flan es 6., 6. Bythis means the spread- "ing of th and absolu security attained.

body of the hose section H is preferably formedie ternall withtransverse corrugations 11, 1, or t e hose' section is otherwiseconstructed to positively en age and retain the superposed end of theexiblehose 12. The inner end of the hose section H, is-formed with anexternal annular shoulder 14 'for engagement with a correspondingannular shoulder 15 on'the looking section L.

16am lateral arms or rojections upon lation; and for a like purpose thepi e section P is formed with apolygons sided flange 17. I I

By in construction and arrangement of parts a exible hose and a metalpipe may be quickly and conveniently'coupled together .with absolutesecurity, and at the same time a perfect seal is attained.

' What I claim-as m invention and desire to secure by Letters atent is,

The improved hose coupling described consisting of a section having atone end a female screw thread and at the other end an annularconvex-contact surface, said section being formed 'exteriorly withtransversely arranged tapering flan es, said taperin flanges beingformed with inwardly bevelei contact faces, there being openings betweensaid flanges, and a locking section formed v WILLIAM L. CANNIFF.Witnesses: 1

v D. W. GARDNER,

GEO. WM. MIATT;

e overlapping shoulders is avoided,

the locking section L to faci tate its man1puwith oppositely displosedoverlappin shoul The out end and greater portion ofthe

